fnPagingInfo Ext for CamelCase Use? dataTable or DataTable?, beginner questions

Hello, I am a beginner of DataTable. In the meantime I know that there are is a different in usage of dataTable and DataTable.

I also read the info about CamelCase and converting parameters. https://datatables.net/upgrade/1.10-convert

But is there an advantage of using and creating datatable with CamelCase like DataTable() ?

In the past I used the old style: oProjectTable = $("#projectdata").dataTable({

so I need var aData = oProjectTable.fnGetData(nRow); to get the data.

If I switch to : oProjectTable = $("#projectdata").DataTable({ I need var aData = oProjectTable.row(nRow).data();

Next Problem is: I have this fnPagingInfo extension, found in the forum. $.fn.dataTableExt.oApi.fnPagingInfo = function ( oSettings ) { return { "iStart": oSettings._iDisplayStart, "iEnd": oSettings.fnDisplayEnd(), "iLength": oSettings._iDisplayLength, "iTotal": oSettings.fnRecordsTotal(), "iFilteredTotal": oSettings.fnRecordsDisplay(), "iPage": Math.ceil( oSettings._iDisplayStart / oSettings._iDisplayLength ), "iTotalPages": Math.ceil( oSettings.fnRecordsDisplay() / oSettings._iDisplayLength ) }; };

No with CamelCase usage I get the error: fnPagingInfo is not a function

How can I use this extension also for CamelCase DataTable() ?

best regards Hawk